package com.bjc.netty.c2;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.channel.*;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import lombok.extern.slf4j.Slf4j;

import java.nio.charset.Charset;
import java.util.concurrent.Callable;
import java.util.concurrent.FutureTask;

/**
 * @program: nettypro
 * @description:
 * @author: bjc
 * @create: 2021-09-21 21:50
 */
@Slf4j
public class EventLoopServer {

    public static void main(String[] args) {
        //创建一个独立的EventLoopGroup 独立处理时间比较长的业务
        EventLoopGroup group = new DefaultEventLoopGroup();
        new ServerBootstrap()
                //boss 和worker
                //boss只负责ServerSocketChannel上accept事件 worker只负责socketChannel上的读写
                .group(new NioEventLoopGroup(),new NioEventLoopGroup(2))
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<NioSocketChannel>() {
                    @Override
                    protected void initChannel(NioSocketChannel ch) throws Exception {
                        ch.pipeline().addLast("handler1",new ChannelInboundHandlerAdapter(){
                            @Override
                            public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                                ByteBuf buf = (ByteBuf) msg;
                                log.debug(buf.toString(Charset.defaultCharset()));
                                //将消息传递给下一个handler
                                ctx.fireChannelRead(msg);
                            }
                        }).addLast(group,"handler2",new ChannelInboundHandlerAdapter(){
                            @Override
                            public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                                ByteBuf buf = (ByteBuf) msg;
                                log.debug(buf.toString(Charset.defaultCharset()));
                            }
                        });
                    }
                }).bind(8080);
    }
}
